Improvement in casters for sewing-machines



* 2 Shee ts -Sheet1. I 6 K. PRDCTOR. Dasters for Sewing-Machines;

N0. 139,608, f 'PatentedJune 3,1873.

WITNESSES. INVENTOR.

G. 'K. PRUCTUR." Casters forSewing-Mach'ines N0. 139,608. I -Pa tentedJune3,187;3

WITNESS ES.

PATENT OFFICE.

GEORGE K. PROOTOR, OF SALEM, MASSACHUSETTS.

IMPROVEMENT m CASTERS FOR SEWING-lVIACl-IINES.

Specification forming part of Letters Patent No. 139,608, dated June 3, 1673 application tiled January 22, 1873.

To all whom it may concern Be it known that I, GEORGE K. PROGTOR, of Salem, in the county of Essex and State of Massachusetts, have invented a certain new and useful Improvement in Caster Attachment to Sewing-Machines, Tables, &c., and that the following is a full, clear, and exact description of the same, reference being bad to the drawings.

The present invention relates particularly to a caster attachment for sewing-machines,

tables, &c., for which Letters Patent were is- In Plate 2, Fig. 3 is a similar view to Fig, 1,

Plate 1, but with the machine-stand shown as resting on its casters; and Fig. 4., a vertical section in plane of lineg 1;, Fig. 2, Plate 1.

A A in the drawings represent the two end frames or legs of a sewing-machine or table; B, the rod on which the treadle-feet are usually hung in sewing-machines; G, a bar or lever hung to and upon the treadle-foot rod B by its two ear-pieces a a. This bar-lever hangs below the rod B, audit is of a length equal or nearly so to the distance between the two end frames A A, and along its upper side it is made concave, forming pans or receptacles b. D and E, two armson same side of lever-bar (J, one arm at each end d, a pin at outer end of arm D. The pin d interlocks with a slot, f, of a lever, F, and, by a circular slot, g, and pin h, the lever F is connected to a lever, G. The two levers F and G are hung to the frame A in a manner precisely similar to the hanging of the levers D and E referred to in the aloresaid patent, and under the arrangement of parts herein they are otherwise relatively constructed to operate substantially as described in said patent, and therefore need no more particular description herein.

The lever F is the operating-lever, and the lever-bar O on rod B is in place of the lever B under aforesaid patent.

Each of the levers G, F, and G is provided with a caster-wheel of any of i the ordinary or proper constructions, said caster-wheels being respectively lettered K, L, and M. The caster-wheel of lever O is at the outer end of its 7 ed is applied to a sewing-machine table or stand, obviously the treadle-rod B is the "most convenient on which to hang the leverbar U, but an independent rod may be provided for it, and, if such is the case, by arranging the additional rod near to or within thecenterline of the table the arm E of lever O can be dispensed with, the caster in that case being applied directly to the lever (J. The lever-bar G can be arranged to turn upon a stud or pin at each end-frame A A in lieu of upon a continuous rod, B, as described, the same result a in either case being obtained. 1

This invention, as to the hanging of the lever-bar 0, consists in disposing it to turn around a common longitudinel center-or axis. Having thus described my invention, I shall state my claims as follows:

1. The lever-bar O, hung as described, in

combination with lever F, or lever G, or both,

and their respective casters, all substantially as described, for the purpose specified.

2. In combination withthe elements of the above claim the bar (3,adapted to serve as a dripping-pan, substantially as described.

The above specification of my invention signed by me this 5th dayof December, A. D. 1872.

GEO. K. PROCTOR.

Witnesses:

EDWIN W. BROW'N, ALBERT W. BROWN. 

